315730740 has 48 divisors (see below), whose sum is σ = 952051968. Its totient is φ = 77718144.

The previous prime is 315730717. The next prime is 315730769. The reversal of 315730740 is 47037513.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 315730698 and 315730707.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 201612 + ... + 203171.

It is an arithmetic number, because the mean of its divisors is an integer number (19834416).

Almost surely, 2^315730740 is an apocalyptic number.

315730740 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

315730740 is an abundant number, since it is smaller than the sum of its proper divisors (636321228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

315730740 is a wasteful number, since it uses less digits than its factorization.

315730740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 404808 (or 404806 counting only the distinct ones).

The product of its (nonzero) digits is 8820, while the sum is 30.

The square root of 315730740 is about 17768.8136914089. The cubic root of 315730740 is about 680.9349451938.

The spelling of 315730740 in words is "three hundred fifteen million, seven hundred thirty thousand, seven hundred forty".